Improvement in injectors



UNITED STATES PATENT OFFICE SAMUEL RUE, 0F PHILADELPHIA,A PENNSYLVANIA,ASSIGNOR T0 THE RUE MANUFACTURING COMPANY, OF SAME PLACE.

IMPROVEMENT IN INJECTORS.

Specification forming part of Letters Patent No. 176,199, dated April18, 1876; application led `May 31, 1875.

To all whom it may concern I Be it known that I, SAMUEL RUE, of the cityand county of Philadelphia and State of Pennsylvania, have invented anew and useful Improvement in Injectors; and l do hereby declare thefollowing to be a clear and exact description of the nature thereof,sufficient to enable others skilled in the art to which my inventionappertains to fully understand, make, and use the same, reference beinghad to the accompanying drawings, making part of this speci'- flcation,in which- Figure 1 is a central longitudinal vertical section of thedevice embodying my invention. Fig. 2 is a top View of a detachedsection, which is below the line m .r of Fig. 1.

Similar letters of reference indicate corresponding parts in the twofigures.

In injectors it is advantageous to have the steam-pipe so attached thatthe steam cannot get to the water-chamber excepting through thesteam-plug, and also that the regulation ot' the greater or less amountof water in proportion to the steam should be made at the point wherethe steam and water first come in contact.

My invention consists in means whereby a closed partition is madebetween the steampipe and water-chamber, and the regulation of the spacethrough which the water Hows to the mouth of the combining-tubeisenlarged or contracted by the steam-tube being moved toward or from thesame, and the mechanism foractuating the same operates directly on thesteamtub'e inside of the water-chamber. To accomplish this I make thesteam plug or nozzle in two parts, one part of which is fixed in the endof the injector, and the other part is telescoped on this lixed part,which acts as a guide therefor.

Referringl to the drawings, A represents the casing or shell, which isprovided with the nozzles B for attachment of the steam-pipe, C forattachment of the water-pipe, D for attachment of the overflow, and Efor attachment of the pipe leading to the generator. F represents asteam plug or nozzle, which, xed inthe nozzle B of the injector,projects into the water-chamber A ofthe shell Apand the projectingportion is contracted, and has f1tted thereon telescopically for part ofits length another plug or nozzle, G, so that the part G has a slidingmotion on the part F, and projects beyond the end thereof', and both arebored out so as to produce a continuous steam-plug, which forms a closedpartition'between the steam-pipe and water-chamber, excepting throughthe steam-plug. On the npper face of the plug or part G there is formeda way or slot, H, which extends horizontally, and in the same is tted aneccentric disk, crosshead, or other operative piece, K, which, connectedto a spindle, L, passing through stuffing-boxes on the shell, andoperated by a lever, crank, wheel, or otherwise, as at N, will impart asliding motion to the plug G.

The operation is as follows: When the spindle L is rotated the head orpiece K will move theplug G a greater or less distance in the chamberA', so as to regulate the space through which the water hows, andconsequently regulate the proportionate amount ot' water and steam andthis is accomplished at the point where the steam and water first comein contact.

It will also be seen that the two-part plug forms a closed partitionbetween the steampipe and water-chamber, so that the steam cannot get tothe water-chamber excepting through said plug.

The way or slot H has a hat surface, and the under face of the head orpiece K is similarly formed, so that the movable plug G will beprevented from rotating on the xed plug, and said head and piece areentirely within the water-chamber.

The part F may be cast with and form part of the shell of the injector,and the projecting portion turned down smaller, so that the part G mayslide on it, in which case the plug would consist of the one part-thesliding part G.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. An injector in which the steam-plug is made of a iixed plug and asliding plug, which are fitted to each other telescopical1y,tl1e slid- 2Il76,ll99

3. The adjustable steam plug G, formed With the Way .H, and theoperating-head or piece K, combined and operating therewith,substantially as and for the purpose set forth.

SAMUEL RUE.

Witnesses:

JOHN A. WIEDERSHEIM, A. P. GRANT.

